{"nhtsa_id":11028094,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-02-03","date":"2026-01-16","document_id":"07-001-26","mfr_campaign":null,"replaces":null,"component":"UNKNOWN OR OTHER","mfr_system":"HVAC","summary":"Some customers may hear a repeating click sound when using the HVAC system (Auto A/C equipped vehicles only). The click sound may be caused by the air mix doors moving back and forth. This concern has been eliminated by a dash-electrical supply unit control software modification.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11028094-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11028094-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11028094","components":[],"codes":[],"topics":[],"vehicles":[{"make":"MAZDA","model":"CX-30","year_from":2020,"year_to":2020,"match":"exact","vehicle_ids":["2020_mazda_cx-30"]},{"make":"MAZDA","model":"MAZDA3","year_from":2019,"year_to":2020,"match":"exact","vehicle_ids":["2019_mazda_mazda3","2020_mazda_mazda3"]}],"as_of":"2026-10-19","note":"A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.","attribution":[]}